@use '../../../../styles/_globals.scss' as *;

:host {
  display: contents;
}

:host * {
  -webkit-user-drag: none; /* Safari/Chrome */
}

.g-multi-btn-wrapper {
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;

  // Hide additional buttons by default on desktop
  .additional-btns {
    display: none;

    @include touchPrimaryDevice() {
      display: flex;
    }
  }

  // Show additional buttons on focus/hover (desktop)
  //&:focus-within .additional-btns,
  &:hover .additional-btns {
    display: flex;
  }

  // Folder header drop zone styling
  &.folder-header-drop-zone {
    border-radius: 4px;
    transition: all 0.2s ease;

    &.drop-target-active {
      background: var(--palette-primary-50);
      border: 2px dashed var(--c-primary);

      // Add some padding to make the drop zone more visible
      padding: 2px;
      margin: -2px;
    }
  }
}

// Always show buttons on mobile/touch devices
@media (hover: none) {
  .additional-btns {
    opacity: 1 !important;
    visibility: visible !important;
  }
}

.additional-btns {
  display: flex;
  margin-left: auto;
}

.additional-btn {
  flex-shrink: 0;
  width: 32px !important;
  height: 32px !important;
  min-width: 32px !important;
  padding: 4px !important;
  margin-left: var(--s);
  color: var(--sidenav-text-secondary);
  background: transparent;
  border: none;
  border-radius: 0 !important; // Override Material Design rounded corners
  cursor: pointer;

  // Override Material Design button styles
  &.mat-mdc-icon-button {
    --mdc-icon-button-state-layer-size: 32px;
    --mdc-icon-button-icon-size: 18px;
    border-radius: 0 !important;
    width: 32px !important;
    height: 32px !important;
    padding: 4px !important;
  }

  &:focus,
  &:hover {
    background-color: var(--sidenav-hover-bg);
    color: var(--sidenav-text-hover);
  }

  mat-icon {
    font-size: 18px;
    width: 18px;
    height: 18px;
  }
}

.nav-children {
  list-style: none;
  padding: 0;
  margin: 4px 0 8px 0;
  position: relative; // For drop indicator positioning
  // Angular animations handle expand/collapse - no CSS transitions needed
}

// Drop indicator styles - line with circle like Atlaskit examples
.drop-indicator {
  position: relative;
  height: 2px;
  background: var(--c-primary);
  border-radius: 1px;
  transition: opacity 0.2s ease;

  // Circle at the start of the line
  &::before {
    content: '';
    position: absolute;
    left: -4px;
    top: -3px;
    width: 8px;
    height: 8px;
    background: var(--c-primary);
    border: 2px solid var(--background-color);
    border-radius: 50%;
    box-shadow: 0 0 0 1px var(--c-primary);
  }
}

.nav-child-item {
  position: relative;

  // Ensure nav-item fills the available space
  nav-item {
    width: 100%;
    display: block;
  }

  &.draggable {
    cursor: grab;
    // Remove default transitions for better performance

    &:active {
      cursor: grabbing;
    }

    &.dragging {
      opacity: 0.8;
      transform: rotate(2deg);
      box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
      z-index: 1000;
      cursor: grabbing;
    }
  }

  &.folder-item {
    &.draggable {
      position: relative;

      &::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        border-radius: 4px;
        border: 2px dashed transparent;
        pointer-events: none;
        transition: border-color 0.2s ease;
      }

      &.drop-target-active::before {
        border-color: var(--c-primary);
        background: var(--palette-primary-50);
      }
    }
  }

  // Placeholder when item is being dragged
  &.drag-placeholder {
    opacity: 0.4;
    background: var(--sidenav-hover-bg);
    border-radius: 4px;
    // Minimize repaint
    transform: translateZ(0);
  }
}

// Drag performance optimizations - keep these for smooth drag operations
.drag-active .nav-child-item:not(.dragging) {
  transition: transform 200ms cubic-bezier(0.25, 0.8, 0.25, 1);
  will-change: transform;
}

// Pragmatic drop indicators are now created dynamically in TypeScript
.pragmatic-drop-indicator {
  // All styling is applied via JavaScript for dynamic positioning
  // This ensures proper positioning relative to the dragged elements
}

// Indentation for nested levels
// Applies a small offset to each nested nav-list level
:host-context(.nav-child-item) {
  .g-multi-btn-wrapper {
    padding-left: var(--s);
  }
  .nav-children {
    margin-left: var(--s);
  }
}

// CompactMode state behaviors inherited from parent sidenav
:host-context(.nav-sidenav.compactMode) {
  .g-multi-btn-wrapper {
    justify-content: center;

    // Hide additional buttons in compact mode, except on mobile
    .additional-btns {
      opacity: 0;

      @media (hover: none) {
        opacity: 1 !important;
        position: static;
        margin-top: 4px;
      }
    }

    .additional-btn {
      @media (hover: none) {
        position: static;
        margin: 0 2px;
      }
    }
  }

  // Angular animations will handle expand/collapse behavior
  // The service handles filtering to show only active items when collapsed
}
